Oxygen: a drug.
D001692:Biological Transport / Q000187:drug effects; D002245:Carbon Dioxide / Q000097:blood; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D006931:Hyperbaric Oxygenation; D000860:Hypoxia / Q000628:therapy; D010100:Oxygen / Q000097:blood / Q000494:pharmacology; D010102:Oxygen Inhalation Therapy / Q000009:adverse effects; D055585:Physical Phenomena; D010825:Physics
D002245:Carbon Dioxide; D010100:Oxygen